Volume 33, Issue 11 pp. 1259-1268
Full Paper

Cyanate Ester/Functionalized Silica Nanocomposite: Synthesis, Characterization and Properties

Jiapeng Li

Jiapeng Li

MOE Key Laboratory of High Performance Polymer Materials and Technology, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, Jiangsu 210093, China

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Qihui He

Qihui He

MOE Key Laboratory of High Performance Polymer Materials and Technology, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, Jiangsu 210093, China

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Renfu Xu

Renfu Xu

MOE Key Laboratory of High Performance Polymer Materials and Technology, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, Jiangsu 210093, China

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Baixing Hu

Corresponding Author

Baixing Hu

MOE Key Laboratory of High Performance Polymer Materials and Technology, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, Jiangsu 210093, China

MOE Key Laboratory of High Performance Polymer Materials and Technology, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, Jiangsu 210093, ChinaSearch for more papers by this author
First published: 28 October 2015
Citations: 7

Abstract

In this paper silica nanoparticles with covalently grafted polymer chains were incorporated into bisphenol A dicyanate ester (BADCy) to prepare composites which resulted in improvements in the mechanical and thermal properties. Fourier-transform infrared (FT-IR) spectroscopy transmission electron microscopy (TEM) and thermogravimetric analysis (TGA) were employed to examine the surface functionalization of silica nanoparticles. The effects of functionalized SiO2 (F-SiO2) on the curing reactivity mechanical and thermal properties of BADCy resin were investigated systematically. The curing reaction of the system was facilitated with the addition of F-SiO2. Meanwhile compared with the neat resin the incorporation of appropriate content of modified F-SiO2 can enhance the mechanical properties including impact flexural strengths and fracture toughness KIC of BADCy resin. In addition the thermal stability of BADCy/F-SiO2 nanocomposites is also superior to that of pure BADCy resin.

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